Deadly Nightshade

The most-misnamed plant in America. Genuinely deadly, genuinely rare here - and the berry in your hand is almost certainly one of three other nightshades. Learn the single bell flower and the single glossy berry in its flat green star.

How to recognise it, and how to rule it out: a stout bush with unequal leaf pairs, single nodding purple bells, and one glossy black berry sitting in a flat green five-pointed star - versus the red-berried vine, the black-berried weed, the magenta-stalked pokeweed and the blueberry.

You never grow, gather or handle this plant. The point of the section is recognition, and just as importantly, ruling it out.

The real thing. A branching herbaceous bush 2 to 5 feet tall with a thick perennial root. Leaves dull dark green, oval, pointed, smooth-edged, up to 8 inches, arranged in unequal pairs — one large leaf and one much smaller one together at each joint. Flowers solitary and nodding, bell- or tube-shaped, about an inch long, dull purple-brown outside with a greenish-yellow veined throat, from June into September. Fruit a single glossy black berry the size of a small cherry, seated on the flat, spread, five-pointed green calyx. Crushed foliage smells rank and unpleasant.

Against bittersweet nightshade (Solanum dulcamara) — far and away the commonest false alarm. Bittersweet is a climbing vine scrambling through hedges, its berries are bright red and hang in drooping clusters, and its flowers are flat purple stars with a protruding cone of yellow anthers, like a tiny tomato flower. Red, clustered, climbing, star-flowered: not belladonna.

Against black nightshade (Solanum nigrum and relatives) — the harder call, because these berries really are black. But black nightshade is a low bushy annual weed, its berries are pea-sized, dull rather than lacquered, and hang in small clusters of three to ten, and its flowers are little white stars with a yellow beak. Belladonna's berry is bigger, glossier, and always alone.

Against pokeweed — no real contest once you look: a thick smooth magenta stalk carrying a long drooping spike of flattened purple-black fruit. Against blueberry and huckleberry — the five-pointed crown is on the far end of a blueberry, and blueberries hang in clusters on a woody shrub. On belladonna the green star sits behind a single berry on a soft-stemmed bush. Against Virginia creeper — blue-black berries on bright red stalks, on a vine with five-fingered leaves.

One rule outranks all of this: identify berries before anyone picks, not after anyone eats. If you cannot name the plant with certainty, the answer is no.

There is no care - only removal or a wide berth. Take it out where children, pets or grazing animals reach it, in gloves, root and all, into the trash. Never compost it, never burn it, and never leave the pulled plant lying with the berries on.

Belladonna has no care, only two decisions: leave it alone, or take it out properly.

Take it out if it is anywhere children, pets or grazing animals can reach, or anywhere near a berry patch or a play area. Do it in waterproof gloves, long sleeves and eye protection. Strip and bag the berries first so they do not scatter as you work, then dig the whole root — the plant returns from any substantial piece left behind, and the root is the most alkaloid-rich part of all. Bag everything and put it in the household trash. Do not compost it, do not add it to a green-waste bin destined for municipal compost, and do not burn it.

Expect seedlings. Birds eat the berries and pass the seed, and the seed bank stays viable for years, so check the same ground each spring for a few seasons and pull volunteers young. Wash gloves and tools afterwards, and keep the pulled plant out of reach while you finish — a wilting stem with berries still attached, left on a lawn, is exactly the scenario that leads to a poison-control call.

If a plant is genuinely out of the way — a hedge bottom on a boundary, no children, no livestock — leaving it and marking it is a defensible choice. What is not defensible is knowing it is there and telling nobody.

Suspected ingestion is an emergency: call poison control immediately and do not wait for symptoms - there is hospital treatment, and it works best early. Plus straight answers to the questions people actually ask about this plant.

Someone has eaten a berry, or any part of this plant. Call poison control or emergency services immediately. Do not wait for symptoms, and do not try to treat it at home. Take a piece of the plant, or a photograph of it, with you. Effects usually begin within thirty minutes to two hours and are distinctive: widely dilated pupils that do not react to light, blurred vision, a dry mouth, hot dry flushed skin, fever, a racing heart, agitation, confusion and hallucinations. Severe cases progress to seizures and coma. This is one poisoning where hospital treatment genuinely helps, including a specific reversal drug for severe cases — another reason to move fast rather than watch and wait. Effects can last a full day or longer, because these alkaloids slow the gut and keep themselves in circulation.

“Is this deadly nightshade?” In the United States, almost certainly not. Check three things in order: is it climbing with red berries in clusters? That is bittersweet nightshade. Is it a low weed with small dull black berries in little clusters and white star flowers? That is black nightshade. Is the stalk smooth magenta with a long drooping spike of fruit? Pokeweed. Only a stout bush carrying one glossy black berry at a time in a flat green star, under single nodding purple bells, is Atropa.

“A child ate a berry but I identified it as something harmless.” Call anyway. Bittersweet, black nightshade and pokeweed berries all warrant a poison-control call in their own right, so the identification does not change what you should do next.

“My pupil is huge and my vision is blurry after gardening.” Classic belladonna sap in the eye. Contact a doctor or eye service for advice; it usually resolves over several days, but blurred vision means no driving in the meantime.

“Can I keep it as a curiosity, well labelled?” The app will not offer it for planting, and the honest answer is that a label protects nobody who was not told what the label means — not a visiting child, not a dog, not the person who buys the house next.

“Are the berries safe once cooked?” No. Cooking, drying, freezing and steeping do nothing to tropane alkaloids.

Named for the Fate who cuts the thread of life and for the Renaissance women who dropped its juice into their eyes, belladonna has been an arrow poison, a murder weapon, a cosmetic and, finally, one of medicine's genuinely indispensable drugs.

Few plants carry a heavier name. Atropa comes from Atropos, the Fate who cuts the thread of a life; belladonna, “beautiful lady”, records the Renaissance Italian habit of putting berry juice in the eyes to widen the pupils, a look then thought alluring. The women in question were dosing themselves with a drug that also blurred their sight — the earliest and vainest use of what is now a standard ophthalmic tool.

Its darker history is longer. Belladonna appears in the classical world as an arrow poison and in medieval Europe as a favoured means of murder, and it is one of the tropane-bearing plants behind the hallucinatory “flying ointments” of European witchcraft accounts — those alkaloids do pass through skin, which is why the folklore attaches to ointments rather than teas.

The turn came with pharmacology. Atropine was isolated in the 1830s, and a plant that had killed for two thousand years became one of the most useful drugs there is: it dilates the pupil for an eye examination, lifts a dangerously slow heart, dries secretions before anaesthesia, and stands as the front-line antidote to organophosphate pesticide and nerve-agent poisoning. Belladonna is on the short list of plants that are at once a classic poison and a genuine, irreplaceable medicine — the difference lying entirely in purification and dose.

The source of atropine and scopolamine - real drugs on the WHO essential medicines list - and a plant with no safe home preparation of any kind. Herbal-strength belladonna preparations have caused serious poisonings.

This section records how people have traditionally used this plant, and what is known about the risks. It is history and general information — not medical advice, and not a recommendation to treat anything. Plants are not dosed like medicines, some interact with prescriptions, and some are harmful in ways that are not obvious. Talk to a clinician before using any plant medicinally.

Atropa belladonna is the botanical source of atropine, hyoscyamine and scopolamine — drugs used to dilate the pupil, treat bradycardia, dry secretions, control certain gut spasms, prevent motion sickness, and reverse organophosphate and nerve-agent poisoning. They are on the WHO list of essential medicines. That is the entire legitimate story of this plant.

What follows from it is not what herbal enthusiasm usually assumes. There is no safe home preparation of belladonna — no tea, no tincture, no salve, no dose. The alkaloid content of a leaf varies enormously with the plant, its age, the season and the weather; the gap between an effective dose and a dangerous one is narrow; and the effects on the eye, heart and brain arrive together. Poisonings continue to occur from imported or improperly prepared herbal products containing belladonna, and from home-made preparations copying historical recipes.

One point of clarification, because it causes real confusion: homeopathic “Belladonna” pillules are a different thing entirely. Standard homeopathic dilutions are diluted so far that essentially no plant material remains — which is why they are sold freely, and why their safety says nothing whatever about the plant itself. Herbal-strength preparations, teas made from the actual leaf, and any home extraction are dangerous in a way the pillules are not.

The honest summary is the one that fits every part of this file: belladonna earned its place in medicine by being isolated, assayed and measured. Nothing you can make from the plant can be.

A woodland-edge plant of limy soils, hardy roughly in zones 5-9, and in North America a local garden escape rather than a landscape-wide wild plant - concentrated near old gardens, herb collections and homesteads in the Northeast, Great Lakes and Pacific Northwest.

In its European home belladonna is a plant of woodland edges, clearings, hedge bottoms and old walls on chalky or limy soils, in part shade to shade rather than open sun. It is hardy roughly through zones 5 to 9, dying back to a perennial root each winter and returning in spring.

In North America its distribution is best described as local and human-made. It is not native here and does not carpet the countryside. Where it does turn up, it is usually near where somebody once grew it: old homesteads, botanic and physic gardens, herb collections and their downstream compost heaps, with scattered naturalised patches reported in parts of the Northeast, the Great Lakes region and the Pacific Northwest. Seed is still sold, which is the main way new populations start.

The practical consequence for a gardener is worth stating plainly: if you are in the United States and you have found a berried plant in a hedge, on a roadside or in a field margin, the odds overwhelmingly favour bittersweet nightshade, black nightshade or pokeweed. Belladonna is worth knowing on sight anyway — it does occur here, the stakes are as high as they get, and the identifying features are unusually clear — but knowing it should reduce your alarm about wild berries, not raise it.